Polymarket - Scheduled Emergency CLOB maintenance – Maintenance details

All systems operational

Scheduled Emergency CLOB maintenance

Completed
Scheduled for September 02, 2026 at 1:30 AM – 4:57 AMUTC

Affects

Predictions

Under maintenance from 1:30 AM to 4:57 AM

Predictions Trading API (CLOB)

Under maintenance from 1:30 AM to 4:57 AM

Updates
  • Completed
    September 02, 2026 at 4:57 AMUTC
    Completed
    September 02, 2026 at 4:57 AMUTC
    Maintenance has completed successfully.
  • Update
    September 02, 2026 at 4:35 AMUTC
    Update
    September 02, 2026 at 4:35 AMUTC

    We are currently in cancel-only mode. We will remain in cancel-only mode for at least 10 minutes before re-enabling trading.

  • Update
    September 02, 2026 at 3:59 AMUTC
    Update
    September 02, 2026 at 3:59 AMUTC

    The DB maintenance is in final stages. We will perform internal checks after and enter post-only mode shortly after.

  • Update
    September 02, 2026 at 2:51 AMUTC
    Update
    September 02, 2026 at 2:51 AMUTC

    The DB clean up is taking longer than initially estimated and trading will remain paused. We estimate another hour, but will update with a more concrete ETA as soon as we have it.

  • In progress
    September 02, 2026 at 1:30 AMUTC
    In progress
    September 02, 2026 at 1:30 AMUTC
    Maintenance is now in progress
  • Planned
    September 02, 2026 at 1:09 AMUTC
    Planned
    September 02, 2026 at 1:09 AMUTC

    Trading will be paused at 01:30 UTC, Wednesday, September 2 for approximately 1.5 hour. We are working with AWS to apply a final fix to their internal DB issue for the root cause of the database replica lag which includes several database tuning operations. There will be a 5 minute cancel-only mode that will be announced before trading is resumed, and any changes in ETA will be announced as soon as we have them.